NASA's eight-rotor Dragonfly drone just finished a crucial test, which confirmed the spacecraft's design and will allow the ...

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

A new study released on Thursday describes a search for what are called "microlensing" events, where a planet acts as a ...

However, the supposed periodicity in mass extinctions has not held up to scrutiny ... have ruled out any Jupiter-size planets ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, dubbed Planet Nine, could explain the unusual clustering ...

One such moment was when space craft sent back images of the Earth for the first time. Another is the discovery of life on ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was ...

An exhaustive examination of lunar gravity using data obtained by two NASA robotic spacecraft is offering new clues about why ...